EP2300319B1 - Zylindervorrichtung für flugzeugfahrwerk - Google Patents

Zylindervorrichtung für flugzeugfahrwerk Download PDF

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Publication number
EP2300319B1
EP2300319B1 EP09761927A EP09761927A EP2300319B1 EP 2300319 B1 EP2300319 B1 EP 2300319B1 EP 09761927 A EP09761927 A EP 09761927A EP 09761927 A EP09761927 A EP 09761927A EP 2300319 B1 EP2300319 B1 EP 2300319B1
Authority
EP
European Patent Office
Prior art keywords
piston
chamber
housing
cylinder
movable part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP09761927A
Other languages
English (en)
French (fr)
Other versions
EP2300319A2 (de
Inventor
Franck Dervault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Operations SAS
Original Assignee
Airbus Operations SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Airbus Operations SAS filed Critical Airbus Operations SAS
Publication of EP2300319A2 publication Critical patent/EP2300319A2/de
Application granted granted Critical
Publication of EP2300319B1 publication Critical patent/EP2300319B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/14—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like fore-and-aft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/18—Operating mechanisms
    • B64C25/22—Operating mechanisms fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/18—Operating mechanisms
    • B64C25/26—Control or locking systems therefor

Definitions

  • the present invention relates to a jack device, and more particularly to a jack device intended to maneuver an aircraft landing gear or an aircraft landing gear box hatch.
  • the landing gear is retractable, that is to say it is hingedly mounted in a receiving housing of the train, called a landing gear box, located inside the fuselage of the landing gear. 'aircraft.
  • a maneuvering and hooking system is provided to ensure, on the one hand the pivoting of the landing gear about its axis, and on the other hand the locking of the train in the gear position retracted inside the the train box.
  • the landing gear A30 occupies the so-called "out-of-train" position in which the landing gear leg A31 is located outside the A20 landing gear bay.
  • the maneuvering and hooking system comprises a cylinder device A50, generally a hydraulic cylinder A50, which pivots the landing gear leg A31 around the pivot axis X.
  • the cylinder A50 is in retracted rod configuration when the train is out.
  • the cylinder body A51 is mounted on the structure A21 of the gear box A20 and the cylinder rod A52 is mounted on a lever A37 fixed to the bracket A33 of the train.
  • the figure 2 shows the configuration in cruising flight in which the A30 train is kept locked in the gear position retracted inside the A20 train box.
  • the maneuvering and hooking system then comprises a device A60 dedicated to the locking of the train in this position, generally an attachment box A60 mounted on the structure A21 of the A20 train box which cooperates with a hanging rod A36 mounted on the A30 train.
  • the attachment box A60 usually comprises a housing A61 fixed to the structure A21 of the gear box A20, on which is pivotally mounted a locking hook A62.
  • the hook A62 is designed to receive the hooking rod A36 of the train, so as to ensure the locking of the train A30 in its retracted position.
  • the mechanical chain of the attachment box A60 conventionally comprises a set of articulated mechanical elements, among which a locking lever connected to the hook A62.
  • a linkage complex allows to activate the locking lever by several actuating means specific to the operating mode, normal or emergency.
  • the first actuation means of the attachment box can be a solenoid valve connected to the housing by a hydraulic conduit.
  • a second actuating means such as a pyrotechnic cylinder for single use, mechanically ensures the pivoting of the hook A62 and thus the unlocking of the landing gear.
  • the maneuvering and hooking system thus comprises two separate devices, each dedicated to one of these two functions.
  • the attachment device has a significant lack of reliability, because of the large number of mechanical parts may deform.
  • the slightest play or the slightest deformation of these mechanical parts, in particular at the linkage of the attachment box or the attachment rod, can cause locking of the locking hook, or even its inadvertent tripping.
  • the invention mainly relates to a jack device that can be locked in a specific configuration and simply unlocked.
  • the jack device comprises a cylinder body and a piston movable in translation in a space defined by an inner surface of said cylinder body, said piston defining a first chamber and a second chamber within said space.
  • said piston comprises on the one hand a recess located on the circumferential surface of the piston and adapted to receive said abutment portion when the movable piece is in the extracted locking position, and on the other hand a fluidic communication conduit connecting the first chamber and the recess, for controlling the displacement of the moving part of the position extracted from locking to the unlocked retracted position by fluid pressure on said moving part.
  • the jack device according to the invention can provide the maneuvering of a landing gear hinged on a landing gear compartment, or the maneuvering of a landing gear hatch.
  • the invention is then an important simplification of the maneuvering and hooking system according to the prior art, insofar as it is no longer necessary to use a device specifically dedicated to locking the train or the hatch in a position given.
  • the jack device according to the invention can be locked in a configuration which corresponds, for example, to the retracted position or to the closed hatch position. From this locking configuration, the jack device can be unlocked simply to ensure the output of the train or the opening of the hatch.
  • the cylinder device has a high reliability.
  • the locking means of the jack device comprise few mechanical parts that can be deformed.
  • the locking means according to the invention may be designed to ensure the locking of the cylinder device in a configuration other than that corresponding to the retracted position or exit hatch.
  • the locking means may comprise a plurality of movable locking parts of identical or similar design, to ensure the locking of the jack device in several possible configurations.
  • the unlocking mechanism of the cylinder device has a simplified and automatic operation, because directly related to the actuation of the cylinder device. It is therefore not necessary to provide a control means dedicated to the locking means or an electronic computer for controlling the operating sequences.
  • Said moving part is preferably movable in translation in said housing along a translation axis substantially perpendicular to the axis of movement of the piston.
  • Said recess comprises a bottom surface.
  • Said fluidic communication duct advantageously opens into said bottom surface of said recess.
  • Said fluidic communication duct advantageously opens into said recess along an axis substantially parallel to the axis of translation of said movable part.
  • the fluidic communication conduit makes it possible to dimension the piston, and in particular the recess of the piston, so as to reduce the clearance between the surfaces of the recess of the piston, in particular the lateral surfaces of the recess, and the thrust portion of the moving part.
  • the pressure force of the fluid is then essentially exerted on the inner wall of the abutment portion, and along an axis substantially parallel to the axis of translation of the moving part, which improves the removal thereof from the recess of the piston.
  • the substantial reduction of the clearance between the lateral surfaces of the recess and the abutment portion of the moving part substantially reduces all the small unwanted displacements of the piston along its axis of translation, while the jack device is in configuration. locked.
  • the locking means advantageously comprise a return means disposed in said housing for maintaining, below a certain pressure of the fluid in the first chamber, said abutment portion of said movable piece projecting from the housing.
  • said piston defines a first chamber and a second chamber within said space, and said housing is located at one end of the body actuator on the side of the first chamber, said first chamber receiving a cylinder rod.
  • said housing is located at one end of the cylinder body on the side of the first chamber, said second chamber receiving a cylinder rod.
  • the invention also relates to an aircraft landing gear comprising a landing gear leg, a bracket defining a pivot axis of the leg and a cylinder device according to any one of the preceding features, intended to provide pivoting. said leg about said pivot axis.
  • said jack device comprises a jack rod mounted at a first end on said piston and mounted at a second end on said landing gear, said jack body being intended to be mounted on said train box.
  • the device according to the invention has a single mounting point on the structure of the train box.
  • the zones of force recovery of the structure, that it needs to be reinforced by stiffeners or longitudinal members, are therefore less numerous compared to the maneuvering and hooking system according to the prior art, which makes it possible to respond to mass-saving requirements specific to aeronautics.
  • the invention also relates to an aircraft landing gear box hatch equipped with a jack device according to any one previous features, intended to ensure the opening and closing of said trap.
  • said jack device comprises a jack rod mounted at a first end on said piston and mounted at a second end on said hatch, said jack body being intended to be mounted on said box. train.
  • the invention also relates to an aircraft landing gear system comprising a landing gear equipped with at least one hatch according to the preceding characteristic and a landing gear according to the preceding characteristic.
  • the figure 3 shows a general perspective and side view of the jack device 50 according to the preferred embodiment of the invention mounted on a landing gear 30.
  • the latter is housed in a gear box in gear position retracted and kept locked by said jack device.
  • the jack device 50 is mounted firstly on the train 30 and secondly on the structure 21 of the landing gear compartment 20.
  • the jack device 50 comprises a cylinder body 60 pivotally mounted or swiveling on an upper wall of the structure 21 of the box 20, and a cylinder rod 70 mounted to pivot or swivel on the train 30.
  • the cylinder rod 70 is, in the example shown on the figure 3 mounted on a lever 37 integral with the train stem 33.
  • the cylinder device 50 is then in rod configuration output when the train is returned to the box.
  • the rod 70 is mounted on the housing 32 of the landing gear leg 31, the cylinder device 50 then being in a retracted rod configuration.
  • the structure of the jack device will now be described in detail, with reference to the figure 4 .
  • the figure 4 is a longitudinal sectional view of a portion of the jack device 50, the latter occupying a locked rod output configuration.
  • e L gives the longitudinal direction and defines the longitudinal axis of the jack
  • e R is the radial direction
  • e T is the tangential or circumferential direction.
  • the jack device 50 comprises a cylinder body 60 of cylindrical shape, preferably circular, whose inner surface 61 defines a cylindrical space.
  • a piston 80 is slidably mounted sealingly within said space to define a first chamber 62 and a second chamber 63.
  • the cylinder rod 70 is attached to the piston 80 at a first end 71 and passes through the first chamber 62.
  • the second end of the rod 70 can be mounted on the landing gear as previously described.
  • the first chamber 62 is fed by a conduit 62C for filling the chamber with a fluid, preferably incompressible, optionally subjected to a specific pressure.
  • This fluid can be, for example, oil.
  • the second chamber 63 like the first chamber 62, can also be fed by said fluid, through another filling conduit (not shown).
  • the filling ducts pass through the cylinder body 60 and are preferably located in the respective first and second ends 64, 65 of the cylinder body 60.
  • the seal between the first chamber 62 and the second chamber 63 may be provided by at least one annular seal 81 disposed within an annular recess 82 in the form of a groove formed on the circumferential surface 83 of the piston 80. , so that the seal 81 is in permanent contact with the inner surface 61 of the cylinder body 60.
  • the jack device according to the preferred embodiment of the invention comprises locking means for locking the device in a given configuration, which will now be described in detail, with reference to figures 4 and 5 .
  • the figure 5 shows an enlargement of a part of the jack device, corresponding to the zone B indicated on the figure 4 .
  • the first end 64 of the jack body 60 includes a housing 66 adapted to receive a moving part 90.
  • the housing 66 opens on the inner surface 61 of the cylinder body 60 along an axis R substantially perpendicular thereto.
  • the housing 66 and the movable part 90 have a cylindrical shape, preferably circular.
  • a closure cap 67 seals the housing 66 against the environment of the jack device.
  • the moving part 90 is preferably movable in translation with sealing along the axis R inside the housing 66.
  • the seal can be provided by at least one annular seal 66C disposed in a recess in the form of groove 66B made on the side wall 66A of the housing 66 ( figure 5 ).
  • the seal 66B is in permanent contact with the side wall 92 of the moving part 90.
  • the moving part 90 can cooperate with a recess 85 in the form of a groove formed on the circumferential surface 83 of the piston 80.
  • the position of the piston 80, in the extended stem position is such that the recess 85 is opposite the housing 66.
  • a coil spring 68 disposed in the housing 66 between the closure cap 67 and the movable part 90 can make the protrusion out of the housing 66 of a so-called abutment portion 91 of the movable part 90.
  • the abutment portion 91 at least partially occupies the recess 85.
  • the spring when the spring is not stressed, it keeps the moving part 90 at least partially in the housing 66, so that the abutment portion 91 protrudes out of the housing 66.
  • the output of the abutment portion 91 of the movable part 90 out of the housing 66 may also be limited by a shoulder formed on the face opposite to the closure cap 67 of the housing 66 and at the end of the movable part 90.
  • the piston 80 comprises a fluidic communication duct 87 connecting the first chamber 62 to the recess 85.
  • the duct 87 opens into the first chamber 62 through the first lateral surface 92 of the piston 80, and into the recess 85 through the surface of the piston. 85B background of it ( figure 5 ).
  • the fluid filling the first chamber 62 can communicate and fill the recess 85.
  • the conduit 87 opens into the recess 85 along an axis substantially parallel to the translation axis R of the moving part 90.
  • the figure 5 shows the abutment portion 91 of the movable part 90 occupying at least partially the recess 85 of the piston 80.
  • the side wall 92 of the abutment portion 91 of the movable part is substantially in contact with the side wall 85A of the recess 85.
  • the piston 85 is locked in translation. along the directions e L and -e L.
  • the abutment portion 91 of the movable part 90 advantageously comprises an inclined inner wall 93, so that the portion of the side wall 92 is longer along R side of the first chamber 62 than the side of the second room 63.
  • This inclined inner wall 93 of the movable part 90 can cooperate, during a step of the locking phase described below, with an inclined wall 86B of a shoulder 86 formed on the circumferential surface 83 of the piston 80.
  • the shoulder 86 is disposed in the continuity of the recess 85 in the direction e L , and has a substantially triangular shape. It comprises a side wall 86A which coincides with a portion of the side wall 85A of the recess 85, and an inclined wall 86B.
  • the two inclined walls 93 and 86B have a substantially similar inclination and cooperate with each other during the locking phase, as will be described later.
  • a plurality of position sensors 69 are disposed in the side wall 66A of the housing 66 in the direction e R.
  • the sensors 69 make it possible to control the position of the moving part 90 in the housing 66 and thus to check the state of locking or unlocking of the jack device.
  • the figure 6 shows a cross-sectional view along the axis AA of the portion of the cylinder device shown in FIG. figure 4 .
  • the locking means comprise a plurality of moving parts 90 in their respective housing 66.
  • four moving parts 90 are provided and arranged in axial symmetry.
  • Each moving part 90 has a stop portion 91 which can occupy a recess 85 made on the circumferential surface 83 of the piston 80.
  • Each recess 85 is connected to the first chamber 62 by a fluid communication duct 87.
  • the actuation of the jack device 50 is controlled by a control means, for example, a valve.
  • a hydraulic circuit then connects the solenoid valve to the cylinder device 50.
  • the solenoid valve then controls the filling of the first chamber 62 or the second chamber 63.
  • the Figures 7A-7D represent an actuation sequence of the jack device 50 comprising the locking steps.
  • the Figure 7A shows the actuation of the cylinder device 50 in the direction of the rod outlet.
  • the fluid fills the second chamber 63 and exerts a force on the piston 80 in the direction e L.
  • Said piston 80 being free in translation, it moves under the effect of the fluid along the same direction.
  • the first chamber 62 is not filled with fluid and does not exert against pressure on the piston 80. Moreover, the moving part 90 occupies a position, called extracted, that is to say that its portion of stop 91 is projecting out of housing 66.
  • the inclined wall 86B of the shoulder 86 of the piston 80 comes into contact with the inclined wall 93 of the movable part 90.
  • the longitudinal displacement along L L of the inclined wall 86B of the shoulder causes the radial displacement along R e of the inclined wall 93 of the moving part 90.
  • the spring 68 then undergoes a compressive force.
  • the expansion of the spring 68 ensures the displacement of the moving part 90 in the direction -e R so that the abutment portion 91 protrudes from the housing 66 and at least partially occupies the recess 85 of the piston 80.
  • the moving part 90 then occupies an extracted lock position.
  • the piston 80 is locked in translation by the moving part 90, insofar as the stop is made between the side wall 92 of the movable part and the side wall 85A of the recess 85.
  • Actuation of the cylinder device can be disabled.
  • the jack device then occupies a locked configuration in the output rod.
  • the movable part 90 is able to be controlled from said extracted locking position to a retracted unlocking position.
  • the figure 8A shows the actuation of the cylinder device 50 in the direction of the rod retraction.
  • the fluid fills the first chamber 62.
  • the fluid also fills the recess 85.
  • the fluid exerts a pressure force oriented in the direction e R on the moving part 90, more precisely on the inner wall 93 of the moving part 90, which causes the displacement thereof in the same direction until that the abutment portion 91 is housed inside the housing 66.
  • the moving part 90 then occupies the retracted unlocking position.
  • the locking and unlocking are performed automatically, by the actuation of the cylinder device and because of the original design of said device. It is not necessary to provide dedicated control means for the locking means of the jack device.
  • the jack device can be adapted to be locked in a retracted rod configuration.
  • the cylinder device is then designed so that the cylinder rod passes through the second chamber, not the first chamber.
  • the jack device can thus be mounted on the train so that the retraction of the cylinder rod ensures the raising of the train inside the box.
  • each first and second end of the cylinder body comprises a housing in which is housed a locking member movable in translation.
  • the piston then comprises a first recess for cooperating with the movable part of the first end of the cylinder body, and a second recess for cooperating with the movable part of the second end of the cylinder body.
  • the first and second recesses are respectively connected to the first chamber and the second chamber via fluidic communication conduits.
  • the cylinder device it is also possible to design the cylinder device to be able to lock it, either in the retracted rod and output rod configurations, but in intermediate configurations located between them.
  • the invention is not limited to the examples shown.
  • other types of moving parts can be used, such as for example a hook rotatably mounted on the cylinder body and designed to cooperate with the piston, or a rotatably mounted disk and having a cam surface adapted to occupy a recess U-shaped made on the piston.
  • control of the displacement of the moving part from the extracted locking position to the retracted unlocking position can be achieved, not only by fluid pressure force on said moving part as in the preferred embodiment of the invention. invention, but using an electromagnetic device or a mechanical device thus acting as a backup device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Retarders (AREA)

Claims (10)

  1. Zylindervorrichtung (50) mit einem Zylindergehäuse (60) und einem Kolben (80), translatorisch beweglich in einem durch eine Innenfläche (61) des genannten Zylindergehäuses (60) definierten Raum, wobei der genannte Kolben (80) eine erste Kammer (62) und eine zweite Kammer (63) innerhalb des genannten Raums begrenzt,
    dadurch gekennzeichnet, dass sie Verriegelungseinrichtungen mit wenigstens einem beweglichen Verriegelungsteif (90) umfasst, dessen Sitz (66) in der genannten Innenfläche (61) des Zylindergehäuses (60) mündet, wobei das genannte bewegliche Teil (90) folgendermaßen gesteuert werden kann:
    - aus einer ausgefahrenen Verriegelungsstellung, in der ein Anschlagsabschnitt (91) des genannten beweglichen Teils (90) aus dem genannten Sitz (66) hervorsteht und mit dem genannten Kolben (80) so kooperiert, dass er dessen Translation blockiert,
    - in eine zurückgezogene Entriegelungsstellung, in der der genannte Anschlagsabschnitt (91) des genannten beweglichen Teils (90) sich im Innern des genannten Sitzes (66) befindet, so dass die Translation des genannten Kolbens freigegeben ist,
    wobei der Kolben (80) eine in der Umfangsfläche (83) des Kolbens (80) befindliche Aussparung (85) umfasst, konzipiert um den genannten Anschlagsabschnitt (91) aufzunehmen, wenn das bewegliche Teil (90) sich in der ausgefahrenen Verriegelungsstellung befindet,
    und der Kolben (80) eine Leitung (87) zur fluidischen Verbindung der ersten Kammer (62) mit der Aussparung (85) umfasst, was die Steuerung der Verschiebung des beweglichen Teils (90) aus der ausgefahrenen Verriegelungsstellung in die zurückgezogene Entriegelungsstellung ermöglicht, durch die Druckkraft des Fluids auf das bewegliche Teil (90).
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das genannte bewegliche Teil (90) in dem genannten Sitz (66) translatorisch beweglich ist gemäß einer zur Verschiebungsachse des Kolbens (80) im Wesentlichen senkrechten Translationsachse.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die genannte Aussparung (85) eine Bodenfläche (85B) umfasst, wobei die genannte fluidische Verbindungsleitung (87) in der genannten Bodenfläche (85B) der genannten Aussparung (85) mündet.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die genannte fluidische Verbindungsleitung (87) in der genannten Aussparung (85) gemäß einer zur Translationsachse (R) des genannten beweglichen Teils (90) im Wesentlichen parallelen Achse mündet.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Verriegelungseinrichtungen ein in dem genannten Sitz (66) befindliches Rückstellmittel (68) umfassen, das den genannten Anschlagsabschnitt (91) des beweglichen Teils (90) unterhalb eines bestimmten Fluiddrucks in der ersten Kamme (62) in der aus dem Sitz (66) hervorstehenden Stellung hält.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der genannte Kolben (80) eine erste Kammer (62) und eine zweite Kammer (63) im Innern des genannten Raums begrenzt, und dadurch, dass der genannte Sitz (66) sich in Höhe eines Endes (64) des Zylindergehäuses (60) auf der Seite der ersten Kammer (62) befindet, wobei die genannte erste Kammer (62) eine Zylinderkolbenstange (70) aufnimmt.
  7. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der genannte Kolben (80) eine erste Kammer (62) und eine zweite Kammer (63) im Innern des genannten Raums begrenzt, und dadurch, dass der genannte Sitz (66) sich in Höhe eines Endes (64) des Zylindergehäuses (60) auf der Seite der ersten Kammer (62) befindet, wobei die genannte zweite Kammer (63) eine Zylinderkolbenstange (70) aufnimmt.
  8. Flugzeugfahrwerk (30), dazu bestimmt, gelenkig in bzw. an einen Fahrgestellkasten (20) montiert zu werden, mit einem Fahrgestellbein (31), einem eine Schwenkachse (X) des Beins (31) definierenden Ausleger (33) und einer Zylindervorrichtung (50) nach einem der Ansprüche 1 bis 7, dazu bestimmt, die Schwenkbewegung des genannten Beins (31) um die genannte Schwenkachse (X) herum zu gewährleisten, wobei die genannte Zylindervorrichtung (50) eine Zylinderkolbenstange (70) umfasst, deren erstes Ende mit dem Kolben (80) zusammengebaut ist und das zweite Ende mit dem genannten Flugzeugfahrwerk (30), wobei das genannte Zylindergehäuse (60) dazu bestimmt ist, in bzw. an den genannten Fahrgestellkasten (20) montiert zu werden.
  9. Klappe (40) des Fahrwerkskasten (20) eines Flugzeugs, ausgerüstet mit einer Zylindervorrichtung (50) nach einem der Ansprüche 1 bis 7, dazu bestimmt, das Öffnen und das Schließen der genannten Klappe (40) zu gewährleisten, wobei die genannte Zylindervorrichtung (50) eine Zylinderkolbenstange (70) umfasst, deren erstes Ende mit dem Kolben (80) zusammengebaut ist und das zweite Ende mit der genannten Klappe (40), wobei das genannte Zylindergehäuse (60) dazu bestimmt ist, in bzw. an den genannten Fahrgestellkasten (20) montiert zu werden.
  10. Flugzeugfahrwerksystem mit einem Fahrwerkkasten (20), ausgerüstet mit wenigstens einer Kastenklappe (40) nach Anspruch 9 und einem Fahrwerk (30) nach Anspruch 8.
EP09761927A 2008-06-13 2009-06-09 Zylindervorrichtung für flugzeugfahrwerk Not-in-force EP2300319B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0853942A FR2932455B1 (fr) 2008-06-13 2008-06-13 Dispositif de verin pour systeme de train d'atterrissage d'aeronef.
PCT/FR2009/051083 WO2009150376A2 (fr) 2008-06-13 2009-06-09 Dispositif de verin pour systeme de train d'atterrissage d'aeronef

Publications (2)

Publication Number Publication Date
EP2300319A2 EP2300319A2 (de) 2011-03-30
EP2300319B1 true EP2300319B1 (de) 2012-11-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP09761927A Not-in-force EP2300319B1 (de) 2008-06-13 2009-06-09 Zylindervorrichtung für flugzeugfahrwerk

Country Status (3)

Country Link
EP (1) EP2300319B1 (de)
FR (1) FR2932455B1 (de)
WO (1) WO2009150376A2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2951444A4 (de) * 2013-01-30 2016-09-28 Messier Dowty Inc Verriegelungsmechanismus zum verriegeln eines aktuators
FR3085061A1 (fr) * 2018-08-17 2020-02-21 Safran Landing Systems Actionneur lineaire a verrouillage et temoin de verrouillage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2492178B (en) * 2011-08-19 2013-06-19 Messier Dowty Ltd Actuator
US9481453B2 (en) * 2014-03-31 2016-11-01 Goodrich Corporation Shrinking system for landing gear
CN104443365A (zh) * 2014-11-27 2015-03-25 江西洪都航空工业集团有限责任公司 一种新型作动筒防松结构
DE202015003619U1 (de) 2015-05-19 2016-08-22 Liebherr-Aerospace Lindenberg Gmbh Verriegelungsvorrichtung eines Luftfahrzeugfahrwerks
FR3109366B1 (fr) * 2020-04-20 2022-03-18 Safran Landing Systems Agencement de blocage d’un axe d’atterrisseur d’aéronef
GB2611099A (en) * 2021-09-28 2023-03-29 Airbus Operations Ltd Landing gear stay

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH353428A (de) * 1957-06-04 1961-04-15 Sprecher & Schuh Ag Druckmittelbetätigter Antrieb für elektrische Schaltgeräte
US4815295A (en) * 1985-06-03 1989-03-28 A/S Raufoss Ammunisjonsfabrikker Valve actuator system for controlling valves
JP3930665B2 (ja) * 1999-07-23 2007-06-13 株式会社コガネイ 流体圧シリンダ
JP3559213B2 (ja) * 2000-03-03 2004-08-25 株式会社半導体先端テクノロジーズ ロードポート及びそれを用いた生産方式
AUPQ786700A0 (en) * 2000-05-31 2000-06-22 Razorback Vehicles Corporation Limited A hydraulic or pneumatic cylinder
JP4240514B2 (ja) * 2004-02-24 2009-03-18 本田技研工業株式会社 直動アクチエータ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2951444A4 (de) * 2013-01-30 2016-09-28 Messier Dowty Inc Verriegelungsmechanismus zum verriegeln eines aktuators
FR3085061A1 (fr) * 2018-08-17 2020-02-21 Safran Landing Systems Actionneur lineaire a verrouillage et temoin de verrouillage
US10830260B2 (en) 2018-08-17 2020-11-10 Safran Landing Systems Lockable linear actuator with a locking indicator

Also Published As

Publication number Publication date
WO2009150376A3 (fr) 2010-02-25
EP2300319A2 (de) 2011-03-30
FR2932455B1 (fr) 2011-04-08
FR2932455A1 (fr) 2009-12-18
WO2009150376A2 (fr) 2009-12-17

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